Exodus 34:23-25

International Standard Version

²³ Three times during the year all your males are to appear in the presence of the Lord God of Israel, ²⁴ since I’m going to drive out nations before you, and enlarge your borders, and no one will covet your land, when you go up to appear in the presence of the Lord your God three times a year.

²⁵ “You are not to offer the blood of my sacrifice with anything leavened, nor are you to allow the sacrifice of the Festival of Passover to remain until morning.